Gauge valves

For operational use where there is high temperature and sharp temperature excursions, these are normally applied to tubing, machines or systems where it is necessary to be able to regulate or cut-off supply or discharge fluid flow. They have been designed and created to be a safe back-up instrument to pressure gauges, while offering at the same time the possibility of controlling fluids. They are worked, using the practical grip, like simple taps. Connected to the gauge and adjusting the discharge screw, its pressure can be reduced to zero.

With significant use also as an interception valve, and so able to connect or disconnect communication between two adjoining rooms, these are manufactured using high quality materials, selected, treated and machined according to the specific conditions of use.

There are three types available, with the housing made from out original, standard moulds in three different versions: OT/58, AISI/316, ASTM A 105. To further keep down costs, the AISI/316 series can have operational parts in ASTM A 105 galvanized steel.

The entire range is available in the two or three way dual version. The second type has a 40 diameter flange for connection to the control gauge.

Bypass gauge valves

Where there is a system that envisages a shunt route in a distribution circuit, the bypass comes in to exclude an operation not required by the system. The bypass, by creating an alternative route to the normal one, makes it possible to not need to reduce, temporarily, the system's potential thus avoiding decreased output by the plant. In the course of progressive measuring, there arises the need to control the fluid contained in the plant via differential type gauges. Connected to the differential gauge, the bypass responds, with high quality technical advantages, to this type of requirement. The central valve puts the two side ways into direct communication.
On request: versions with accessories in ASTM A 105 galvanized steel.

Manifold

These come in the form of a dual valve with gauge. During the conception and design stage, the main aim was that of limiting running costs on measuring systems and the saving of dual valves with several nipples and joints. The discharge vent is threaded for draining through a tube in order to recover fluids.

On request: versions with accessories in ASTM A 105 galvanized steel. 

 

Gauge valve

Naddle disk AISI 420
AISI 316 with stellite plating
gasket TBA - P.T.F.E.
handwheel Ribbed plate - galvanized or AISI 304
plating ASTM A 105
galvanized or burnished
OT/58 bleaching
thread NPT/GAS/GAS conical
Inlet/Outlet 1/8" - 1/4" - 3/8" - 1/2"
COUPLINGS
male 2 VIE right-right
left-left
(UNAV 4669 DIN 16270)
female 3 VIE right-right
right-left
right-left
(UNAV 4670 DIN 16271)
female right-right funnel
male-female right-right
Operational limits
OT/58 125 ATE 200°C
ASTM A 105 250 ATE 300°C
AISI/316 400 ATE 450°C

 

Bypass gauge valves

 
housing AISI 304
AISI 316 from bar metal
Naddle disk AISI 316 with stellite plating
gasket TBA - P.T.F.E.
handwheel Ribbed plate galvanized or AISI 304
Thread NPT/GAS/GAS conical
Inlet/Outlet 1/8" - 1/4" - 3/8" - 1/2"
COUPLINGS male-female
female-female
(girevole o fisso)
Operational limits -20+350°C 200 ATE

 

Manifold

 
housing FE 42 Machined
AISI 316 from bar metal
Naddle disk AISI 420
AISI 316 with stellite plating
gasket TBA - P.T.F.E.
handwheel Ribbed plate galvanized or AISI 304
Thread NPT
Inlet/Outlet 1/2"
1/4" spurgo
COUPLINGS female
Operational limits -30+450°C 200 ATE